`courseforme.cn`

DNSSEC	⚠️ Not signed
A	156.240.37.253^{🇭🇰 HKMTC-AS-AP156.240.32.0/20 Hong Kong megalayer}
NS	`ns1.nowcndns.com` ⭐
		A	1.193.216.204^{🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network}
			PTR	`ip-1-193-216-204.defastlink.net`
		A	218.98.111.129^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
			PTR	`ip-218-98-111-129.defastlink.net`
		A	218.98.111.138^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
			PTR	`ip-218-98-111-138.defastlink.net`
NS	`ns2.nowcndns.com`
		A	61.158.128.11^{🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network}
			PTR	`11.128.158.61.ha.cnc`
		A	183.253.57.202^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
			PTR	`ip-183-253-57-202.defastlink.net`
		A	211.99.99.38^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
			PTR	`ip-211-99-99-38.defastlink.net`
SOA	`ns1.nowcndns.com`admin@nowcndns.com serial=1770001100

`cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐ 🔒
	NS	`b.dns.cn`
	NS	`c.dns.cn` 🔒
	NS	`d.dns.cn` 🔒
	NS	`e.dns.cn` 🔒
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034456417

courseforme.es

courseforme.cn

courseforme.com

courseforme.de

7 records (3 active, 4 former)

○NSns01.trademarkarea.com2015-07-15 → 2016-07-12 · 4 obs

● 2015-07-15 01:04:04
● 2016-07-12 20:25:38
○ 2017-03-27 17:25:12
○ 2026-03-07 07:00:26

○NSns02.trademarkarea.com2015-07-15 → 2016-07-12 · 4 obs

● 2015-07-15 01:04:04
● 2016-07-12 20:25:38
○ 2017-03-27 17:25:12
○ 2026-03-07 07:00:26

○NSns03.trademarkarea.com2015-07-15 → 2016-07-12 · 4 obs

● 2015-07-15 01:04:04
● 2016-07-12 20:25:38
○ 2017-03-27 17:25:12
○ 2026-03-07 07:00:26

●NSns1.nowcndns.com2026-03-06 → 2026-03-07 · 3 obs

○ 2017-03-27 17:25:12
● 2026-03-06 06:10:24
● 2026-03-07 07:00:26

●NSns2.nowcndns.com2026-03-06 → 2026-03-07 · 3 obs

○ 2017-03-27 17:25:12
● 2026-03-06 06:10:24
● 2026-03-07 07:00:26

●A156.240.37.2532026-03-06 → 2026-03-07 · 3 obs

○ 2017-03-27 17:25:12
● 2026-03-06 06:10:24
● 2026-03-07 07:00:26

○A46.30.241.1672015-07-15 → 2016-07-12 · 4 obs

● 2015-07-15 01:04:04
● 2016-07-12 20:25:38
○ 2017-03-27 17:25:12
○ 2026-03-07 07:00:26

courseforme.cn points to a single IP address: 156.240.37.253.

Other host names, for instance 2s2s.com, share IP numbers with courseforme.cn.

courseforme.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.

courseforme.cn uses the same name server setup as other domains, including lsqzx.cn, zhengqing.net.cn, dianboshi.cn, rgjy.com.cn and manhen.com.cn.

Host names with three IP numbers: